Rename files to fit QGIS coding guidelines

Author: NathanW2

src/gui/CMakeLists.txt

@@ -70,7 +70,7 @@ qgstextannotationitem.cpp
 qgsvertexmarker.cpp
 qgsludialog.cpp
 qgssearchquerybuilder.cpp
-qgsexpressionbuilder.cpp
+qgsexpressionbuilderwidget.cpp
 qgsexpressionbuilderdialog.cpp
 )
 
@@ -127,7 +127,7 @@ qgsludialog.h
 qgsprojectbadlayerguihandler.h
 qgslonglongvalidator.h
 qgssearchquerybuilder.h
-qgsexpressionbuilder.h
+qgsexpressionbuilderwidget.h
 qgsexpressionbuilderdialog.h
 )
 
@@ -161,7 +161,7 @@ qgsmaptip.h
 qgssearchquerybuilder.h
 qgsattributeeditor.h
 qgsfieldvalidator.h
-qgsexpressionbuilder.h
+qgsexpressionbuilderwidget.h
 qgsexpressionbuilderdialog.h
 
 attributetable/qgsattributetablemodel.h
@@ -179,7 +179,7 @@ ${CMAKE_CURRENT_BINARY_DIR}/../ui/ui_qgsmessageviewer.h
 ${CMAKE_CURRENT_BINARY_DIR}/../ui/ui_qgscredentialdialog.h
 ${CMAKE_CURRENT_BINARY_DIR}/../ui/ui_qgsprojectionselectorbase.h
 ${CMAKE_CURRENT_BINARY_DIR}/../ui/ui_qgsquerybuilderbase.h
-${CMAKE_CURRENT_BINARY_DIR}/../ui/ui_qgsexpressionbuilder.h
+${CMAKE_CURRENT_BINARY_DIR}/../ui/ui_qgsexpressionbuilderwidget.h
 ${CMAKE_CURRENT_BINARY_DIR}/../ui/ui_qgsexpressionbuilderdialogbase.h
 )