[test] Bump stack size of regression test.

This is to make sure the test in question does not run out of stack
space during bootstrapping on any configuration. Our fuzzers take the
test an run it against a broad spectrum of configuration. The new size
of 100 is used throughout our test suite as "the smallest" stack size.

R=jkummerow@chromium.org
TEST=mjsunit/regress/regress-1132
BUG=chromium:619744

Review-Url: https://codereview.chromium.org/2068993002
Cr-Commit-Position: refs/heads/master@{#36995}

test/mjsunit/regress/regress-1132.js

@@ -28,7 +28,7 @@
 // Test the case when exception is thrown from the parser when lazy
 // compiling a function.
 
-// Flags: --stack-size=46
+// Flags: --stack-size=100
 // NOTE: stack size constant above has been empirically chosen.
 // If the test starts to fail in Genesis, consider increasing this constant.