[SymbolFilePDB] Add support for function symbols

Summary:
This is combination of following changes,

- Resolve function symbols in PDB symbol file. `lldb-test symbols` will display information about function symbols.

- Implement SymbolFilePDB::FindFunctions methods. On lldb console, searching function symbol by name and by regular expression are both available.

- Create lldb type for PDBSymbolFunc.

- Add tests to check whether functions with the same name but from different sources can be resolved correctly.

Reviewers: zturner, lldb-commits

Reviewed By: zturner

Subscribers: amccarth, labath, llvm-commits

Differential Revision: https://reviews.llvm.org/D42443

llvm-svn: 324707

1 files changed, 16 insertions, 0 deletions

diff --git a/lldb/lit/SymbolFile/PDB/Inputs/FuncSymbols.cpp b/lldb/lit/SymbolFile/PDB/Inputs/FuncSymbols.cpp
new file mode 100644
index 00000000000..ccccf6ffd10
--- /dev/null
+++ b/lldb/lit/SymbolFile/PDB/Inputs/FuncSymbols.cpp
@@ -0,0 +1,16 @@
+// Static function
+namespace {
+static long StaticFunction(int a)
+{
+  return 2;
+}
+}
+
+// Inlined function
+static inline int InlinedFunction(long a) { return 10; }
+
+void FunctionCall()
+{
+  StaticFunction(1);
+  InlinedFunction(1);
+}