Allow unit-testing try-catch(condition)

Our CBot unit tests run in single-step mode.
Try-catch had a hack that prevented evaluation of catch conditions in single-step mode.

I have removed the hack to enable unit-testing, but that caused a different problem:
debugging code inside the body of try-catch became inconvenient because
the player had to manually step over every catch expression after every single instruction in try body.

I solved this by teaching CBotTry to step-over the catch conditions

CBot/src/CBot/CBotInstr/CBotTry.cpp

@@ -101,8 +101,6 @@ bool CBotTry::Execute(CBotStack* &pj)
         }
 
         val = pile1->GetError();
-        if ( val == CBotNoErr && pile1->GetTimer() == 0 )           // mode step?
-            return false;                   // don't jump to the catch
 
         pile1->IncState();
         pile2->SetState(val);                                   // stores the error number
@@ -124,8 +122,18 @@ bool CBotTry::Execute(CBotStack* &pj)
     {
         if ( --state <= 0 )
         {
-            // ask to the catch block if it feels concerned
-            if ( !pc->TestCatch(pile2, val) ) return false;     // suspend !
+            // Debugging QoL: automatically step over catch expressions
+            while ( true )
+            {
+                if ( pc->TestCatch(pile2, val) ) break;
+                if ( !pile2->IsOk() ) return false;
+                const int extraTicks = 100;
+                // Decrement and check the counter without changing pile0 state
+                if ( !pile0->SetState(1, -extraTicks) )
+                {
+                    return false; // Prevent infinite loops and external calls from hanging the game
+                }
+            }
             pile1->IncState();
         }
         if ( --state <= 0 )

test/src/CBot/CBot_test.cpp

@@ -3434,6 +3434,27 @@ TEST_F(CBotUT, TestTryCatch) {
         "}\n",
         CBotErrBadType1
     );
+
+    ExecuteTest(
+        "extern void TestTryCatchCondition() {\n"
+        "    int foo = 0;\n"
+        "    try {\n"
+        "        foo = 1;\n"
+        "        for(int i = 0; i < 20; ++i);  // Should give try an opportunity to check condition\n"
+        "        foo = 2;  // Should not get here\n"
+        "    } catch(foo == 1);\n"
+        "    ASSERT(foo == 1);\n"
+        "}\n"
+    );
+
+    ExecuteTest(
+        "extern void TestExcetionInCatchCondition() {\n"
+        "    try {\n"
+        "        for(int i = 0; i < 20; ++i); // Should give try an opportunity to check condition\n"
+        "    } catch(1/0 == 0);\n"
+        "}\n",
+	CBotErrZeroDiv
+    );
 }
 
 TEST_F(CBotUT, TestFinally) {