Fix an AST and token incompatibility for Prism::Translation::Parser

Fixes #2506.

This PR fixes an AST and token incompatibility between Parser gem and `Prism::Translation::Parser`
for symbols quoted with line breaks.

Author: koic

lib/prism/translation/parser/compiler.rb

@@ -1526,9 +1526,23 @@ def visit_symbol_node(node)
               builder.symbol([node.unescaped, srange(node.location)])
             end
           else
+            parts = if node.value.lines.one?
+              [builder.string_internal([node.unescaped, srange(node.value_loc)])]
+            else
+              start_offset = node.value_loc.start_offset
+
+              node.value.lines.map do |line|
+                end_offset = start_offset + line.length
+                offsets = srange_offsets(start_offset, end_offset)
+                start_offset = end_offset
+
+                builder.string_internal([line, offsets])
+              end
+            end
+
             builder.symbol_compose(
               token(node.opening_loc),
-              [builder.string_internal([node.unescaped, srange(node.value_loc)])],
+              parts,
               token(node.closing_loc)
             )
           end

lib/prism/translation/parser/lexer.rb

@@ -285,6 +285,16 @@ def to_a
                 quote = value[2] == "-" || value[2] == "~" ? value[3] : value[2]
                 value = "<<#{quote == "'" || quote == "\"" ? quote : "\""}"
               end
+            when :tSTRING_CONTENT
+              unless (lines = token.value.lines).one?
+                start_offset = offset_cache[token.location.start_offset]
+                lines.map do |line|
+                  end_offset = start_offset + line.length
+                  tokens << [:tSTRING_CONTENT, [line, Range.new(source_buffer, start_offset, offset_cache[end_offset])]]
+                  start_offset = end_offset
+                end
+                next
+              end
             when :tSTRING_DVAR
               value = nil
             when :tSTRING_END

test/prism/fixtures/dsym_str.txt

@@ -0,0 +1,2 @@
+:"foo
+  bar"