Highlight the path of file location in error report

    So that it's more obvious when we need to copy the file path.

AUTHORS

@@ -101,3 +101,4 @@ Trevor Bekolay
 Wouter van Ackooy
 Bernard Pratz
 Javier Romero
+Xuecong Liao

CHANGELOG.rst

@@ -1,6 +1,8 @@
 2.9.3.dev
 =========
 
+* Highlight path of the file location in the error report.
+
 **Bug Fixes**
 
 * Add an 'E' to the first line of error messages from FixtureLookupErrorRepr.

_pytest/_code/code.py

@@ -723,7 +723,8 @@ def toterminal(self, tw):
         i = msg.find("\n")
         if i != -1:
             msg = msg[:i]
-        tw.line("%s:%s: %s" %(self.path, self.lineno, msg))
+        tw.write(self.path, bold=True, Red=True)
+        tw.line(":%s: %s" % (self.lineno, msg))
 
 class ReprLocals(TerminalRepr):
     def __init__(self, lines):