Use "Environment" instead of "Rscons::Environment" in build tests

build_tests/two_sources/Rsconscript

@@ -1,5 +1,5 @@
 build do
-  Rscons::Environment.new(echo: :command) do |env|
+  Environment.new(echo: :command) do |env|
     env.Object("one.o", "one.c", 'CPPFLAGS' => ['-DONE'])
     env.Program('two_sources.exe', ['one.o', 'two.c'])
   end

build_tests/two_sources/assuffix.rb

@@ -1,5 +1,5 @@
 build do
-  Rscons::Environment.new do |env|
+  Environment.new do |env|
     env["ASSUFFIX"] = %w[.ssss .sss]
     env["CFLAGS"] += %w[-S]
     env.Object("one.ssss", "one.c", "CPPFLAGS" => ["-DONE"])

build_tests/two_sources/cache_strict_deps.rb

@@ -11,7 +11,7 @@ class StrictBuilder < Rscons::Builder
 end
 
 build do
-  Rscons::Environment.new(echo: :command) do |env|
+  Environment.new(echo: :command) do |env|
     env.add_builder(StrictBuilder.new)
     env.Object("one.o", "one.c", "CCFLAGS" => %w[-DONE])
     env.Object("two.o", "two.c")

build_tests/two_sources/libsuffix.rb

@@ -1,5 +1,5 @@
 build do
-  Rscons::Environment.new() do |env|
+  Environment.new() do |env|
     env["LIBSUFFIX"] = %w[.aaaa .aaa]
     env.Library("one.aaaa", "one.c", "CPPFLAGS" => ["-DONE"])
     env.Library("two.aaa", "two.c")

build_tests/two_sources/objsuffix.rb

@@ -1,5 +1,5 @@
 build do
-  Rscons::Environment.new do |env|
+  Environment.new do |env|
     env["OBJSUFFIX"] = %w[.oooo .ooo]
     env.Object("one.oooo", "one.c", "CPPFLAGS" => ["-DONE"])
     env.Object("two.ooo", "two.c")