profile: support for -profile-no-inline (with it, [inline] fns will not get profiled)

cmd/v/help/build.txt

@@ -74,7 +74,10 @@ The build flags are shared by the build and run commands:
          c) an average for each function (i.e. (b) / (a) )
          d) the function name
       NB: if you want to output the profile info to stdout, use `-profile -`.
-
+      
+   -profile-no-inline       
+      Skip [inline] functions when profiling.
+      
    -stats
       Enable more detailed statistics reporting, while compiling test files.
       You can use that with `v test` too, for example:

cmd/v/v.v

@@ -150,6 +150,9 @@ fn parse_args(args []string) (&pref.Preferences, string) {
 				res.is_prof = true
 				i++
 			}
+			'-profile-no-inline' {
+				res.profile_no_inline = true
+			}
 			'-prod' {
 				res.is_prod = true
 			}