Add reparse test for libclang

Adapted from a reproducer by Dan Schmidt, thanks!

llvm-svn: 211910

[C++11] Use 'nullptr'. Unittests edition.

llvm-svn: 210423

VirtualFileSystem: Fix a few directory traversal bugs in VFSWriter

There are a couple of issues with writing VFS maps that are awkward to
fix within the current mutually recursive approach. Instead,

VirtualFileSystem: Fix a few directory traversal bugs in VFSWriter

There are a couple of issues with writing VFS maps that are awkward to
fix within the current mutually recursive approach. Instead, replace
the algorithm with an iterative version that uses an explicit stack of
directories.

Includes tests for cases the old approach was tripping on.

llvm-svn: 209332

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libclang: Give each VirtualFileOverlay unit test its own name

llvm-svn: 209257

VirtualFileSystem: Fix false positives in YAMLVFSWriter::containedIn

Checking if a path starts with another path isn't sufficient for
determining if one is contained within the heirarchy of the othe

VirtualFileSystem: Fix false positives in YAMLVFSWriter::containedIn

Checking if a path starts with another path isn't sufficient for
determining if one is contained within the heirarchy of the other.
We need to ensure that the substring ends at a directory boundary.

llvm-svn: 209250

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Switch another write_escaped to yaml::escape

I missed one in r206443.

llvm-svn: 208941

Fix a tiny test-only leak, found by LSan.

llvm-svn: 207137

When writing YAML in libclang, use yaml::escape instead of write_escaped

The YAMLParser has its own escaped string representation, and does not
handle octal escape sequences. When writing the virtua

When writing YAML in libclang, use yaml::escape instead of write_escaped

The YAMLParser has its own escaped string representation, and does not
handle octal escape sequences. When writing the virtual file system to a
YAML file, use yaml::escape().

llvm-svn: 206443

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[libclang] Introduce clang_VirtualFileOverlay_setCaseSensitivity that exposes the VFS option
to set the case-sensitivity for lookups.

rdar://16374696

llvm-svn: 204303

[libclang] Introduce APIs that assist in constructing a simple module.map file for a user framework.

rdar://16092858

llvm-svn: 202681

[libclang] Change clang_VirtualFileOverlay_writeToBuffer to return a malloc'ed buffer.

Returning CXString is not appropriate if we want to switch to a non-string format buffer.

llvm-svn: 202675

[libclang] Introduce libclang APIs for creating a buffer with a JSON virtual file overlay description.

The current API only supports adding 'virtual file path' -> 'real file path' mappings.

rdar://

[libclang] Introduce libclang APIs for creating a buffer with a JSON virtual file overlay description.

The current API only supports adding 'virtual file path' -> 'real file path' mappings.

rdar://15986708

llvm-svn: 202105

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libclang: ensure clang_createTranslationUnit2 always initializes *TU

llvm-svn: 201657

Add files that I forgot to svn add in 201578.

llvm-svn: 201579

libclang: fix a bug in processing invalid arguments, introduced in r201249,
pointed out by Daniel Jasper in r201329

llvm-svn: 201346