Rename "[Mm]ethod(s)" to "[Ff]unction(s)"

Only methods as programming functions are affected. Besides renaming
some actions like "Switch Between Function Declaration/Definition" this
mostly touches (api) code comments.

This is a follow-up patch to commit 872bfb7.

Change-Id: Icb65e8d73b59a022f8885b14df497169543a3b92
Reviewed-by: hjk <hjk121@nokiamail.com>

src/libs/qmljs/parser/qmlerror.cpp

@@ -44,13 +44,13 @@ QT_BEGIN_NAMESPACE
 
     QmlError includes a textual description of the error, as well
     as location information (the file, line, and column). The toString()
-    method creates a single-line, human-readable string containing all of
+    function creates a single-line, human-readable string containing all of
     this information, for example:
     \code
     file:///home/user/test.qml:7:8: Invalid property assignment: double expected
     \endcode
 
-    You can use qDebug() or qWarning() to output errors to the console. This method
+    You can use qDebug() or qWarning() to output errors to the console. This function
     will attempt to open the file indicated by the error
     and include additional contextual information.
     \code

src/libs/qmljs/qmljscheck.cpp

@@ -1464,7 +1464,7 @@ bool Check::visit(TypeOfExpression *ast)
 
 /// When something is changed here, also change ReadingContext::lookupProperty in
 /// texttomodelmerger.cpp
-/// ### Maybe put this into the context as a helper method.
+/// ### Maybe put this into the context as a helper function.
 const Value *Check::checkScopeObjectMember(const UiQualifiedId *id)
 {
     if (!_importsOk)

src/libs/qmljs/qmljsevaluate.cpp

@@ -46,10 +46,10 @@ using namespace QmlJS;
 
     Example: Pass in the AST for "1 + 2" and NumberValue will be returned.
 
-    In normal cases only the call operator (or the equivalent value() method)
+    In normal cases only the call operator (or the equivalent value() function)
     will be used.
 
-    The reference() method has the special behavior of not resolving \l{Reference}s
+    The reference() function has the special behavior of not resolving \l{Reference}s
     which can be useful when interested in the identity of a variable instead
     of its value.
 

src/libs/qmljs/qmljsqrcparser.cpp

@@ -64,7 +64,7 @@ namespace Internal {
  * For a single qrc a given path maps to a single file, but when one has multiple
  * (platform specific exclusive) qrc files, then multiple files match, so QStringList are used.
  *
- * Especially the collect* methods are thought as low level interface.
+ * Especially the collect* functions are thought as low level interface.
  */
 class QrcParserPrivate
 {

src/libs/qmljs/qmljsscopechain.cpp

@@ -40,7 +40,7 @@ using namespace QmlJS;
     a specific location.
     \sa Document Context ScopeBuilder
 
-    A ScopeChain is used to perform global lookup with the lookup() method and
+    A ScopeChain is used to perform global lookup with the lookup() function and
     to access information about the enclosing scopes.
 
     Once constructed for a Document in a Context it represents the root scope of