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initialization in if-expression
```
if (NSNumber* x = ...)
```
is a reasonable pattern in objc++, we should not warn on it.
rdar://35152234
Differential Revision: https://reviews.llvm.org/D44044
llvm-svn: 326619
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A combination of C++ modules, variadic functions with more than one argument,
and const globals in headers (all three being necessary) causes some releases
of clang to misplace the matcher objects, which causes the linker to fail.
No functional change - the extra allOf() matcher is no-op here.
llvm-svn: 287045
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Support CFNumberRef and OSNumber objects, which may also be accidentally
converted to plain integers or booleans.
Enable explicit boolean casts by default in non-pedantic mode.
Improve handling for warnings inside macros.
Improve error messages.
Differential Revision: https://reviews.llvm.org/D25731
llvm-svn: 285533
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When dealing with objects that represent numbers, such as Objective-C NSNumber,
the language provides little protection from accidentally interpreting
the value of a pointer to such object as the value of the number represented
by the object. Results of such mis-interpretation may be unexpected.
The checker attempts to fill this gap in cases when the code is obviously
incorrect.
With "Pedantic" option enabled, this checker enforces a coding style to
completely prevent errors of this kind (off by default).
Differential Revision: https://reviews.llvm.org/D22968
llvm-svn: 284473
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