Use clang-query via this script to assess SystemC programs.

The main use of this will be in developing AST matchers instead of
writing dedicated code to find/match in the AST.

scripts/sa-clang-query.sh

+#!/bin/bash
+
+################################################################################
+# Script to allow running clang-query on SystemC programs. 
+################################################################################
+
+if [ -z "$1" ]; then
+    echo [sa-clang-query] Error: You must specify a filename;
+    exit;
+fi
+
+if [ -z "$SYSTEMC" ]; then 
+    echo [sa-clang-query] Error: Environment variable SYSTEMC is not set or empty;
+    exit;
+fi
+
+# Execute clang query.
+clang-query $1 -extra-arg=-I$SYSTEMC/include
+