Filipe Cabecinhas 6af0f89f37 [IR/AsmWriter] Output escape sequences if the first character isdigit()
If the first character in a metadata attachment's name is a digit, it has
to be output using an escape sequence, otherwise it's not valid text IR.

Removed an over-zealous assert from LLVMContext which didn't allow this.
The rule should only apply to text IR. Actual names can have any sequence
of non-NUL bytes.

Also added some documentation on accepted names.

Bug found with AFL fuzz.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238867 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-02 21:25:08 +00:00
..
2015-06-02 00:25:12 +00:00
2015-06-02 20:38:46 +00:00
2015-06-02 20:38:46 +00:00