Suppress warnings [Feature #15973]

spec/ruby/core/kernel/fixtures/classes.rb

@@ -350,7 +350,7 @@ module KernelSpecs
 
     module Ampersand
       def lambda(&block)
-        super(&block)
+        suppress_warning {super(&block)}
       end
     end
 

spec/ruby/core/kernel/lambda_spec.rb

@@ -33,7 +33,7 @@ describe "Kernel.lambda" do
 
   it "returns the passed Proc if given an existing Proc" do
     some_proc = proc {}
-    l = lambda(&some_proc)
+    l = suppress_warning {lambda(&some_proc)}
     l.should equal(some_proc)
     l.lambda?.should be_false
   end
@@ -55,7 +55,7 @@ describe "Kernel.lambda" do
 
   it "does not create lambda-style Procs when captured with #method" do
     kernel_lambda = method(:lambda)
-    l = kernel_lambda.call { 42 }
+    l = suppress_warning {kernel_lambda.call { 42 }}
     l.lambda?.should be_false
     l.call(:extra).should == 42
   end

spec/ruby/core/proc/fixtures/source_location.rb

@@ -44,7 +44,7 @@ module ProcSpecs
 
     def self.my_detached_lambda
       body = -> { true }
-      lambda(&body)
+      suppress_warning {lambda(&body)}
     end
 
     def self.my_detached_proc_new

spec/ruby/core/proc/lambda_spec.rb

@@ -15,8 +15,8 @@ describe "Proc#lambda?" do
   end
 
   it "is preserved when passing a Proc with & to the lambda keyword" do
-    lambda(&->{}).lambda?.should be_true
-    lambda(&proc{}).lambda?.should be_false
+    suppress_warning {lambda(&->{})}.lambda?.should be_true
+    suppress_warning {lambda(&proc{})}.lambda?.should be_false
   end
 
   it "is preserved when passing a Proc with & to the proc keyword" do