c++/10244: [3.4 regression] In error messages for templates, template type is no longer displayed

[bangerth at ticam dot utexas dot edu]

>Number:         10244
>Category:       c++
>Synopsis:       [3.4 regression] In error messages for templates, template type is no longer displayed
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Mar 27 15:56:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     Wolfgang Bangerth
>Release:        unknown-1.0
>Organization:
>Environment:
present mainline
>Description:
For a code like this:
--------------------------
template <class T> void f(T) { BOGUS; }
int main() { f (1); }
--------------------------
we would previously get an error message that states
the type of T:

g/x> /home/bangerth/bin/gcc-3.3-pre/bin/c++ -c compiler_bug.cc
compiler_bug.cc: In function `void f(T) [with T = int]':
compiler_bug.cc:9:   instantiated from here
compiler_bug.cc:4: error: `BOGUS' undeclared (first use this function)
compiler_bug.cc:4: error: (Each undeclared identifier is reported only once for
   each function it appears in.)


With present mainline, this "[with T=int]" is missing:
g/x> /home/bangerth/bin/gcc-3.4-pre/bin/c++ -c compiler_bug.cc
compiler_bug.cc: In function `void f(T)':
compiler_bug.cc:4: error: `BOGUS' has not been declared

I think this makes finding errors harder to find, and
consider this a regression.

W.
>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: