AST: Add ranges for AsmStmt's inputs and outputs

No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211483 91177308-0d34-0410-b5e6-96231b3b80d8
StaticAnalyzer: Switch a loop to a range-based for

Merely a code simplification, no functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211484 91177308-0d34-0410-b5e6-96231b3b80d8
Parse: Simplify construction of the clobber list

This avoids going over the clobber list twice.

No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211485 91177308-0d34-0410-b5e6-96231b3b80d8