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

cmd/v/help/build.txt

@@ -75,6 +75,9 @@ The build flags are shared by the build and run commands:
          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
 			}

vlib/v/gen/profile.v

@@ -12,6 +12,10 @@ fn (mut g Gen) profile_fn(fn_name string, is_main bool){
 		g.writeln('\tatexit(vprint_profile_stats);')
 		g.writeln('')
 	}
+	if g.pref.profile_no_inline && g.attr == 'inline' {
+		g.defer_profile_code = ''
+		return        
+	}
 	if fn_name.starts_with('time.vpc_now') {
 		g.defer_profile_code = ''
 	} else {

vlib/v/pref/pref.v

@@ -33,6 +33,7 @@ pub mut:
 	is_shared           bool // an ordinary shared library, -shared, no matter if it is live or not
 	is_prof             bool // benchmark every function
 	profile_file        string // the profile results will be stored inside profile_file
+	profile_no_inline   bool // when true, [inline] functions would not be profiled
 	translated          bool // `v translate doom.v` are we running V code translated from C? allow globals, ++ expressions, etc
 	is_prod             bool // use "-O2"
 	obfuscate           bool // `v -obf program.v`, renames functions to "f_XXX"