Specified return value in several store methods in FileAccess

Some of the store methods did not specify the nature of return bool value.
Added it after referring to FileAccess.cpp method.

Moved return statement to preceding paragraph

Addressed comments: Moved return description to first line

Author: krishnabm

doc/classes/FileAccess.xml

@@ -414,7 +414,7 @@
 			<return type="bool" />
 			<param index="0" name="value" type="int" />
 			<description>
-				Stores an integer as 8 bits in the file. This advances the file cursor by 1 byte.
+				Stores an integer as 8 bits in the file. This advances the file cursor by 1 byte. Returns [code]true[/code] if the operation is successful.
 				[b]Note:[/b] The [param value] should lie in the interval [code][0, 255][/code]. Any other value will overflow and wrap around.
 				[b]Note:[/b] If an error occurs, the resulting value of the file position indicator is indeterminate.
 				To store a signed integer, use [method store_64], or convert it manually (see [method store_16] for an example).
@@ -424,7 +424,7 @@
 			<return type="bool" />
 			<param index="0" name="value" type="int" />
 			<description>
-				Stores an integer as 16 bits in the file. This advances the file cursor by 2 bytes.
+				Stores an integer as 16 bits in the file. This advances the file cursor by 2 bytes. Returns [code]true[/code] if the operation is successful.
 				[b]Note:[/b] The [param value] should lie in the interval [code][0, 2^16 - 1][/code]. Any other value will overflow and wrap around.
 				[b]Note:[/b] If an error occurs, the resulting value of the file position indicator is indeterminate.
 				To store a signed integer, use [method store_64] or store a signed integer from the interval [code][-2^15, 2^15 - 1][/code] (i.e. keeping one bit for the signedness) and compute its sign manually when reading. For example:
@@ -466,7 +466,7 @@
 			<return type="bool" />
 			<param index="0" name="value" type="int" />
 			<description>
-				Stores an integer as 32 bits in the file. This advances the file cursor by 4 bytes.
+				Stores an integer as 32 bits in the file. This advances the file cursor by 4 bytes. Returns [code]true[/code] if the operation is successful.
 				[b]Note:[/b] The [param value] should lie in the interval [code][0, 2^32 - 1][/code]. Any other value will overflow and wrap around.
 				[b]Note:[/b] If an error occurs, the resulting value of the file position indicator is indeterminate.
 				To store a signed integer, use [method store_64], or convert it manually (see [method store_16] for an example).
@@ -476,7 +476,7 @@
 			<return type="bool" />
 			<param index="0" name="value" type="int" />
 			<description>
-				Stores an integer as 64 bits in the file. This advances the file cursor by 8 bytes.
+				Stores an integer as 64 bits in the file. This advances the file cursor by 8 bytes. Returns [code]true[/code] if the operation is successful.
 				[b]Note:[/b] The [param value] must lie in the interval [code][-2^63, 2^63 - 1][/code] (i.e. be a valid [int] value).
 				[b]Note:[/b] If an error occurs, the resulting value of the file position indicator is indeterminate.
 			</description>
@@ -485,7 +485,7 @@
 			<return type="bool" />
 			<param index="0" name="buffer" type="PackedByteArray" />
 			<description>
-				Stores the given array of bytes in the file. This advances the file cursor by the number of bytes written.
+				Stores the given array of bytes in the file. This advances the file cursor by the number of bytes written. Returns [code]true[/code] if the operation is successful.
 				[b]Note:[/b] If an error occurs, the resulting value of the file position indicator is indeterminate.
 			</description>
 		</method>
@@ -495,47 +495,47 @@
 			<param index="1" name="delim" type="String" default="&quot;,&quot;" />
 			<description>
 				Store the given [PackedStringArray] in the file as a line formatted in the CSV (Comma-Separated Values) format. You can pass a different delimiter [param delim] to use other than the default [code]","[/code] (comma). This delimiter must be one-character long.
-				Text will be encoded as UTF-8.
+				Text will be encoded as UTF-8. Returns [code]true[/code] if the operation is successful.
 				[b]Note:[/b] If an error occurs, the resulting value of the file position indicator is indeterminate.
 			</description>
 		</method>
 		<method name="store_double">
 			<return type="bool" />
 			<param index="0" name="value" type="float" />
 			<description>
-				Stores a floating-point number as 64 bits in the file. This advances the file cursor by 8 bytes.
+				Stores a floating-point number as 64 bits in the file. This advances the file cursor by 8 bytes. Returns [code]true[/code] if the operation is successful.
 				[b]Note:[/b] If an error occurs, the resulting value of the file position indicator is indeterminate.
 			</description>
 		</method>
 		<method name="store_float">
 			<return type="bool" />
 			<param index="0" name="value" type="float" />
 			<description>
-				Stores a floating-point number as 32 bits in the file. This advances the file cursor by 4 bytes.
+				Stores a floating-point number as 32 bits in the file. This advances the file cursor by 4 bytes. Returns [code]true[/code] if the operation is successful.
 				[b]Note:[/b] If an error occurs, the resulting value of the file position indicator is indeterminate.
 			</description>
 		</method>
 		<method name="store_half">
 			<return type="bool" />
 			<param index="0" name="value" type="float" />
 			<description>
-				Stores a half-precision floating-point number as 16 bits in the file. This advances the file cursor by 2 bytes.
+				Stores a half-precision floating-point number as 16 bits in the file. This advances the file cursor by 2 bytes. Returns [code]true[/code] if the operation is successful.
 				[b]Note:[/b] If an error occurs, the resulting value of the file position indicator is indeterminate.
 			</description>
 		</method>
 		<method name="store_line">
 			<return type="bool" />
 			<param index="0" name="line" type="String" />
 			<description>
-				Stores [param line] in the file followed by a newline character ([code]\n[/code]), encoding the text as UTF-8. This advances the file cursor by the length of the line, after the newline character. The amount of bytes written depends on the UTF-8 encoded bytes, which may be different from [method String.length] which counts the number of UTF-32 codepoints.
+				Stores [param line] in the file followed by a newline character ([code]\n[/code]), encoding the text as UTF-8. This advances the file cursor by the length of the line, after the newline character. The amount of bytes written depends on the UTF-8 encoded bytes, which may be different from [method String.length] which counts the number of UTF-32 codepoints. Returns [code]true[/code] if the operation is successful.
 				[b]Note:[/b] If an error occurs, the resulting value of the file position indicator is indeterminate.
 			</description>
 		</method>
 		<method name="store_pascal_string">
 			<return type="bool" />
 			<param index="0" name="string" type="String" />
 			<description>
-				Stores the given [String] as a line in the file in Pascal format (i.e. also store the length of the string). Text will be encoded as UTF-8. This advances the file cursor by the number of bytes written depending on the UTF-8 encoded bytes, which may be different from [method String.length] which counts the number of UTF-32 codepoints.
+				Stores the given [String] as a line in the file in Pascal format (i.e. also store the length of the string). Text will be encoded as UTF-8. This advances the file cursor by the number of bytes written depending on the UTF-8 encoded bytes, which may be different from [method String.length] which counts the number of UTF-32 codepoints. Returns [code]true[/code] if the operation is successful.
 				[b]Note:[/b] If an error occurs, the resulting value of the file position indicator is indeterminate.
 			</description>
 		</method>
@@ -544,15 +544,15 @@
 			<param index="0" name="value" type="float" />
 			<description>
 				Stores a floating-point number in the file. This advances the file cursor by either 4 or 8 bytes, depending on the precision used by the current Godot build.
-				If using a Godot build compiled with the [code]precision=single[/code] option (the default), this method will save a 32-bit float. Otherwise, if compiled with the [code]precision=double[/code] option, this will save a 64-bit float.
+				If using a Godot build compiled with the [code]precision=single[/code] option (the default), this method will save a 32-bit float. Otherwise, if compiled with the [code]precision=double[/code] option, this will save a 64-bit float. Returns [code]true[/code] if the operation is successful.
 				[b]Note:[/b] If an error occurs, the resulting value of the file position indicator is indeterminate.
 			</description>
 		</method>
 		<method name="store_string">
 			<return type="bool" />
 			<param index="0" name="string" type="String" />
 			<description>
-				Stores [param string] in the file without a newline character ([code]\n[/code]), encoding the text as UTF-8. This advances the file cursor by the length of the string in UTF-8 encoded bytes, which may be different from [method String.length] which counts the number of UTF-32 codepoints.
+				Stores [param string] in the file without a newline character ([code]\n[/code]), encoding the text as UTF-8. This advances the file cursor by the length of the string in UTF-8 encoded bytes, which may be different from [method String.length] which counts the number of UTF-32 codepoints. Returns [code]true[/code] if the operation is successful.
 				[b]Note:[/b] This method is intended to be used to write text files. The string is stored as a UTF-8 encoded buffer without string length or terminating zero, which means that it can't be loaded back easily. If you want to store a retrievable string in a binary file, consider using [method store_pascal_string] instead. For retrieving strings from a text file, you can use [code]get_buffer(length).get_string_from_utf8()[/code] (if you know the length) or [method get_as_text].
 				[b]Note:[/b] If an error occurs, the resulting value of the file position indicator is indeterminate.
 			</description>
@@ -562,7 +562,7 @@
 			<param index="0" name="value" type="Variant" />
 			<param index="1" name="full_objects" type="bool" default="false" />
 			<description>
-				Stores any Variant value in the file. If [param full_objects] is [code]true[/code], encoding objects is allowed (and can potentially include code). This advances the file cursor by the number of bytes written.
+				Stores any Variant value in the file. If [param full_objects] is [code]true[/code], encoding objects is allowed (and can potentially include code). This advances the file cursor by the number of bytes written. Returns [code]true[/code] if the operation is successful.
 				Internally, this uses the same encoding mechanism as the [method @GlobalScope.var_to_bytes] method, as described in the [url=$DOCS_URL/tutorials/io/binary_serialization_api.html]Binary serialization API[/url] documentation.
 				[b]Note:[/b] Not all properties are included. Only properties that are configured with the [constant PROPERTY_USAGE_STORAGE] flag set will be serialized. You can add a new usage flag to a property by overriding the [method Object._get_property_list] method in your class. You can also check how property usage is configured by calling [method Object._get_property_list]. See [enum PropertyUsageFlags] for the possible usage flags.
 				[b]Note:[/b] If an error occurs, the resulting value of the file position indicator is indeterminate.