Fix autotest build for cplusplus based tests.

Reviewed-by: Roberto Raggi

tests/auto/cplusplus/shared/shared.pri

 DEFINES+=CPLUSPLUS_BUILD_STATIC_LIB
 include(../../../../qtcreator.pri)
-include($$IDE_SOURCE_TREE/src/libs/cplusplus/cplusplus.pri)
 INCLUDEPATH += $$IDE_SOURCE_TREE/src/libs/cplusplus
-LIBS += -L$$OUT_PWD
+INCLUDEPATH += $$IDE_SOURCE_TREE/src/shared/cplusplus
+LIBS += -L$$OUT_PWD/../shared -lCPlusPlusTestSupport

tests/auto/cplusplus/shared/shared.pro

@@ -3,4 +3,4 @@ TARGET = CPlusPlusTestSupport
 CONFIG += static depend_includepath
 QT = core gui
 DESTDIR = $$PWD
-include($$PWD/../../../../src/libs/cplusplus/cplusplus.pri)
+include($$PWD/../../../../src/libs/cplusplus/cplusplus-lib.pri)