+- handle non-constant initializers
+- output source file positions for panics.
+- handle bitfield members with 0 correctly (standard says they finish the
+ current unit)
+- merge functions entities declared in lokal scope
+
+Missing Errors:
+
+Missing Warnings:
+- dead assignments (int x = 5; x = bla(); -> dead assignment at x = 5;)
+- catch the if(k = b) cases, maybe require all assignments to be in parentheses
+ (but some few exceptions like toplevel, nested assignments)
+
+main/driver:
+- delete output file if we had an error
+
+Spec-Status:
+164.gzip: works
+175.vpr: works
+176.gcc: sometimes works...
+181.mcf: works
+186.crafty: works
+253.perlbmk: works
+254.gap: works
+255.vortex: works
+256.bzip2: works
+300.twolf: works