data member definitions when the variable has an initializer
in its declaration.
For the following code:
  struct S {
    static const int x = 42;
  };
  const int S::x = 42;
This patch changes the diagnostic from:
  a.cc:4:14: error: redefinition of 'x'
  const int S::x = 42;
               ^
  a.cc:2:20: note: previous definition is here
    static const int x = 42;
                     ^
to:
  a.cc:4:18: error: static data member 'x' already has an initializer
  const int S::x = 42;
                   ^
  a.cc:2:24: note: previous initialization is here
    static const int x = 42;
                         ^
Differential Revision: http://llvm-reviews.chandlerc.com/D2235
llvm-svn: 195306
						
					
				
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| .. | ||
| p3.cpp | ||
| p4.cpp | ||