Fix inserting pending breakpoints. (#2163)

Before this patch the JS execution is started right after the parsing
is completed. The problem is that some parts of the JS code is executed
before the debugger had any chance to insert pending breakpoints due
to network latency. This patch adds a delay after parsing when at least
one pendding breakpoint is available.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com

tests/debugger/do_pending_breakpoints.cmd

@@ -1,7 +1,9 @@
+break :1
+y
 break f
 y
 list
-n
-n
+c
+list
 c
 c

tests/debugger/do_pending_breakpoints.expected

@@ -1,17 +1,24 @@
 Connecting to: localhost:5001
 Stopped at tests/debugger/do_pending_breakpoints.js:15
+(jerry-debugger) break :1
+No breakpoint found, do you want to add a pending breakpoint? (y or [n])
+Pending breakpoint at :1
 (jerry-debugger) break f
 No breakpoint found, do you want to add a pending breakpoint? (y or [n])
 Pending breakpoint at f()
 (jerry-debugger) list
 === Pending breakpoints ===
- 1: f() (pending)
-(jerry-debugger) n
+ 1: :1 (pending)
+ 2: f() (pending)
+(jerry-debugger) c
 out: pending-breakpoints
-Stopped at tests/debugger/do_pending_breakpoints.js:17
-(jerry-debugger) n
-Breakpoint 2 at <unknown>:1 (in f() at line:1, col:1)
-Stopped at tests/debugger/do_pending_breakpoints.js:19
+Breakpoint 3 at <unknown>:1
+Breakpoint 4 at <unknown>:3 (in f() at line:2, col:1)
+Stopped at breakpoint:3 <unknown>:1
+(jerry-debugger) list
+=== Active breakpoints  ===
+ 3: <unknown>:1
+ 4: <unknown>:3 (in f() at line:2, col:1)
 (jerry-debugger) c
-Stopped at breakpoint:2 <unknown>:1 (in f() at line:1, col:1)
+Stopped at breakpoint:4 <unknown>:3 (in f() at line:2, col:1)
 (jerry-debugger) c

tests/debugger/do_pending_breakpoints.js

@@ -14,7 +14,7 @@
 
 print("pending-breakpoints");
 
-eval("function f(){ return 5 }");
+eval("1;\nfunction f()\n{ return 5 }");
 
 var bird = "colibri";
 f();