Run the analyzer within the build environment.

This is especially important for clang-cl, which requires the environment
set by e.g. vcvars32.bat [1].

[1] http://clang.llvm.org/docs/UsersManual.html#clang-cl

Change-Id: If319bb94752bbef9207581c50173dde99af007bc
Reviewed-by: Christian Kandeler <christian.kandeler@theqtcompany.com>

plugins/clangstaticanalyzer/clangstaticanalyzerrunner.h

@@ -37,6 +37,7 @@ class ClangStaticAnalyzerRunner : public QObject
 public:
     ClangStaticAnalyzerRunner(const QString &clangExecutable,
                               const QString &clangLogFileDir,
+                              const Utils::Environment &environment,
                               QObject *parent = 0);
     ~ClangStaticAnalyzerRunner();