update elements and fix some bugs

lib/src/prism/tests/languages/rust/number_feature.test

Index: lib/src/prism/tests/languages/rust/number_feature.test
diff --git a/lib/src/prism/tests/languages/rust/number_feature.test b/lib/src/prism/tests/languages/rust/number_feature.test
new file mode 100644
index 0000000000000000000000000000000000000000..61d6e8a5e7bdb21a154bbde6b6bb0d676d22c1b8
--- /dev/null
+++ b/lib/src/prism/tests/languages/rust/number_feature.test
@@ -0,0 +1,47 @@
+0xBad_Face
+0o741_123
+0b0000_1111
+42_000
+3.14_15_9
+3e4
+3.5E-8
+4.6e+41
+
+0xBad_Faceu8
+0o741_123i8
+0b0000_1111u16
+42_000i16
+3.14_15_9u32
+3e4i32
+3.5E-8u64
+4.6e+41i64
+4.2f32
+4.2f64
+
+----------------------------------------------------
+
+[
+	["number", "0xBad_Face"],
+	["number", "0o741_123"],
+	["number", "0b0000_1111"],
+	["number", "42_000"],
+	["number", "3.14_15_9"],
+	["number", "3e4"],
+	["number", "3.5E-8"],
+	["number", "4.6e+41"],
+
+	["number", "0xBad_Faceu8"],
+	["number", "0o741_123i8"],
+	["number", "0b0000_1111u16"],
+	["number", "42_000i16"],
+	["number", "3.14_15_9u32"],
+	["number", "3e4i32"],
+	["number", "3.5E-8u64"],
+	["number", "4.6e+41i64"],
+	["number", "4.2f32"],
+	["number", "4.2f64"]
+]
+
+----------------------------------------------------
+
+Checks for numbers.