[PATCH] Detect mismatching 'new' and 'delete' uses

[Ismail Pazarbasi]

Hi rsmith, rtrieu, jordan_rose,

Frontend doesn't detect mismatching uses of 'new' and 'delete'. Analyzer catches this case.

Emit warning, and recover, when:
  int *p = new int[1];
  delete p; // treat as 'delete[]'
  int *l = new int(1);
  delete[] l; // treat as 'delete'

http://reviews.llvm.org/D4661

Files:
  include/clang/Basic/DiagnosticSemaKinds.td
  include/clang/Sema/Sema.h
  lib/Sema/SemaExprCXX.cpp
  test/Analysis/Malloc+MismatchedDeallocator+NewDelete.cpp
  test/Analysis/MismatchedDeallocator-checker-test.mm
  test/Analysis/MismatchedDeallocator-path-notes.cpp
  test/CodeGenCXX/new.cpp
  test/SemaCXX/delete.cpp
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