tree a3d724b66f45b2cd37e3b3c5e7b29af8a0b50643
parent 0f055d11096cb02563e9c040cd03c791fd8f69a3
author Dragos Sbirlea <dragoss@google.com> 1374865503 -0700
committer Dragos Sbirlea <dragoss@google.com> 1374880460 -0700

Improvements and clustering for the .dot file generation.

Dot clusters are used to show SEA IR regions.
Passing around dex_file for improved instruction  text representation.
SeaGraph now stores the dex file.
Removed all .dot edges except ssa edges and inter-region control flow.
Changed color to gray for ssa edges and kept black for control flow.
Consistently labeled SSA edges with virtual register number.
Replaced stringstream with StringPrintf.

Change-Id: I67d9d92e594d3f2de94eec1c78a64f3972ae60b1