constant without an explicit conversion. I think that is a
bug. This adds a test case for it.
Also, change errchk to include the string BUG in error
messages, so that failures are included in the count reported
by the run shell script.
R=r,ken
DELTA=11 (7 added, 0 deleted, 4 changed)
OCL=15857
CL=15880
permits testing that the compiler emits error messages for
specific lines that match egrep regexps. The desired error
messages are expressed using comments of the form
// ERROR "regexp"
R=r
DELTA=90 (73 added, 8 deleted, 9 changed)
OCL=15513
CL=15566
