interface exported by libast.

llvm-svn: 39154

llvm-svn: 39153

llvm-svn: 39152

llvm-svn: 39151

fundamentally requires having an AST around, so move all sema to the
AST library.  This is the first step, later steps will be needed to
clean up libast.

llvm-svn: 39150

llvm-svn: 39149

llvm-svn: 39148

llvm-svn: 39147

llvm-svn: 39146

llvm-svn: 39145

llvm-svn: 39144

llvm-svn: 39143

llvm-svn: 39141

llvm-svn: 39140

llvm-svn: 39139

case, speeding up parsing of this contrived example:

#define A {{}}
#define B A A A A A A A A A A
#define C B B B B B B B B B B
#define D C C C C C C C C C C
#define E D D D D D D D D D D
#define F E E E E E E E E E E
#define G F F F F F F F F F F
#define H G G G G G G G G G G

void foo() {
  H
}

from 7.478s to 4.321s.  GCC requires 8.2s.

llvm-svn: 39138

llvm-svn: 39137

switch statements.  Make break/continue check that they are inside of an
appropriate control-flow construct.  This implements Parser/bad-control.c.

llvm-svn: 39136

llvm-svn: 39135

llvm-svn: 39134

llvm-svn: 39133

llvm-svn: 39132

llvm-svn: 39131

llvm-svn: 39130

llvm-svn: 39129

llvm-svn: 39128

llvm-svn: 39127

llvm-svn: 39126

llvm-svn: 39125

llvm-svn: 39124

llvm-svn: 39123

llvm-svn: 39122

llvm-svn: 39121

llvm-svn: 39120

llvm-svn: 39119

llvm-svn: 39118

eliminate repetitive code.

llvm-svn: 39117

llvm-svn: 39116

llvm-svn: 39115

llvm-svn: 39114