Hi,

The attached patch fixes a few things of the gdb.opencl/datatypes.exp 
testcase:
 - Allow "false" when printing the content of a bool variable.
 - Expect correct OpenCL names for vector types.
 - Use the uc3 variable name instead of referring to the uchar3 built-in type.
 - Escape the asterisk at the half pointer test.
Ok to apply?

Regards
Ken