Added regression tests for br_gh167.

ivltests/br_gh167a.v

@@ -0,0 +1,19 @@
+class my_class;
+  task run_test();
+    $display("PASSED");
+  endtask
+endclass
+
+class extended_class extends my_class;
+endclass
+
+module test();
+
+extended_class obj;
+
+initial begin
+  obj = new();
+  obj.run_test();
+end
+
+endmodule

ivltests/br_gh167b.v

@@ -0,0 +1,19 @@
+class my_class;
+  task run_test();
+    $display("PASSED");
+  endtask
+endclass
+
+module test();
+
+class extended_class extends my_class;
+endclass
+
+extended_class obj;
+
+initial begin
+  obj = new();
+  obj.run_test();
+end
+
+endmodule

regress-sv.list

@@ -122,6 +122,8 @@ br_gh164b		normal,-g2009		ivltests
 br_gh164c		normal,-g2009		ivltests
 br_gh164d		normal,-g2009		ivltests
 br_gh164e		normal,-g2009		ivltests
+br_gh167a		normal,-g2009		ivltests
+br_gh167b		normal,-g2009		ivltests
 br_ml_20150315b		CE,-g2009		ivltests
 cast_real		normal,-g2005-sv	ivltests
 cfunc_assign_op_mixed	normal,-g2009		ivltests

regress-vlog95.list

@@ -279,6 +279,8 @@ unp_array_typedef	CE,-g2009,-pallowsigned=1	ivltests  # Also string
 br959			CE,-g2009		ivltests
 br1003a			CE,-g2009		ivltests
 br_gh104a		CE,-g2009		ivltests
+br_gh167a		CE,-g2009		ivltests
+br_gh167b		CE,-g2009		ivltests
 sv_class1		CE,-g2009		ivltests
 sv_class2		CE,-g2009		ivltests
 sv_class3		CE,-g2009		ivltests

regression_report-devel.txt

@@ -1813,6 +1813,8 @@ test_mos_strength_reduction: Passed.
                   br_gh164c: Passed.
                   br_gh164d: Passed.
                   br_gh164e: Passed.
+                  br_gh167a: Passed.
+                  br_gh167b: Passed.
             br_ml_20150315b: Passed - CE.
                   cast_real: Passed.
       cfunc_assign_op_mixed: Passed.
@@ -2293,4 +2295,4 @@ test_mos_strength_reduction: Passed.
                 ufuncsynth1: Passed.
 ============================================================================
 Test results:
-  Total=2291, Passed=2284, Failed=7, Not Implemented=0, Expected Fail=0
+  Total=2293, Passed=2286, Failed=7, Not Implemented=0, Expected Fail=0

regression_report-strict.txt

@@ -1810,6 +1810,8 @@ test_mos_strength_reduction: Passed.
                   br_gh164c: Passed.
                   br_gh164d: Passed.
                   br_gh164e: Passed.
+                  br_gh167a: Passed.
+                  br_gh167b: Passed.
             br_ml_20150315b: Passed - CE.
                   cast_real: Passed.
       cfunc_assign_op_mixed: Passed.
@@ -2290,4 +2292,4 @@ test_mos_strength_reduction: Passed.
                 ufuncsynth1: Passed.
 ============================================================================
 Test results:
-  Total=2288, Passed=2281, Failed=7, Not Implemented=0, Expected Fail=0
+  Total=2290, Passed=2283, Failed=7, Not Implemented=0, Expected Fail=0

regression_report-v10.txt

@@ -1869,6 +1869,8 @@ test_mos_strength_reduction: Passed.
                   br_gh164c: Passed.
                   br_gh164d: Passed.
                   br_gh164e: Passed.
+                  br_gh167a: Passed.
+                  br_gh167b: Passed.
             br_ml_20150315b: Passed - CE.
                   cast_real: Passed.
       cfunc_assign_op_mixed: Passed.
@@ -2293,4 +2295,4 @@ test_mos_strength_reduction: Passed.
                 ufuncsynth1: Passed.
 ============================================================================
 Test results:
-  Total=2291, Passed=2257, Failed=4, Not Implemented=30, Expected Fail=0
+  Total=2293, Passed=2259, Failed=4, Not Implemented=30, Expected Fail=0

regression_report-vlog95.txt

@@ -196,6 +196,8 @@ Running vlog95 compiler/VVP tests for Icarus Verilog version: 11.
                       br959: Passed - CE.
                     br1003a: Passed - CE.
                   br_gh104a: Passed - CE.
+                  br_gh167a: Passed - CE.
+                  br_gh167b: Passed - CE.
                   sv_class1: Passed - CE.
                   sv_class2: Passed - CE.
                   sv_class3: Passed - CE.
@@ -2293,4 +2295,4 @@ test_mos_strength_reduction: Passed.
            synth_if_no_else: Passed.
 ============================================================================
 Test results:
-  Total=2291, Passed=2253, Failed=5, Not Implemented=3, Expected Fail=30
+  Total=2293, Passed=2255, Failed=5, Not Implemented=3, Expected Fail=30